Which factor causes the two balls to reach the ground at the same time

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

If you drive 12 miles north and 35 miles east, what is the direct distance between you and your starting point?

For this question, any non-integer answers should be entered as decimals, rounded to the hundredths place.consider this data set.the mean of the data set is , and the sample proportion of numbers less than the mean is %